M.B.
My son had testing done to rule out PANDAS and he didn't have it. He was diagnosed with early onset bipolar, his dr said if he would have been positive for PANDAS he would have still taken the same meds he takes now anyways. Which is zyprexa and Abilify. I would contact a pyschiatrist and ask them how they would treat it.
I should clarify he's was diagnosed with the bipolar before we tested for PANDAS, we wanted to be positive his diagnoses were correct.